David Fairchild quotes:

...the avocado is a food without rival among the fruits, the veritable fruit of paradise

The mangosteen, queen of the tropical fruit.

For keenest enjoyment, I visit when the dew is on them, or in cloudy weather, or when the rain is falling: and I must be alone or with someone who cares for them as I do.

...the need for a garden of rare palms and vines and ornamental trees and shrubs which would be near enough to a growing city to form a quiet place where children with their elders could peer, as it were, into those fascinating jungles and palm glades of the tropics which have for generations stimulated the imaginations of American youth.

The human mind prefers something which it can recognize to something for which it has no name, and, whereas thousands of persons carry field glasses to bring horses, ships, or steeples close to them, only a few carry even the simplest pocket microscope. Yet a small microscope will reveal wonders a thousand times more thrilling than anything which Alice saw behind the looking-glass.

...after my first feeling of revulsion had passed, I spent three of the most entertaining and instructive weeks of my life studying the fascinating molds which appeared one by one on the slowly disintegrating mass of horse-dung. Microscopic molds are both very beautiful and absorbingly interesting. The rapid growth of their spores, the way they live on each other, the manner in which the different forms come and go, is so amazing and varied that I believe a man could spend his life and not exhaust the forms or problems contained in one plate of manure.

Never to have seen anything but the temperate zone is to have lived on the fringe of the world. Between the Tropic of Capricorn and the Tropic of Cancer live the majority of all the plant species, the vast majority of the insects, most of the strange ... quadrupeds, all of the great and most of the poisonous snakes and large lizards, most of the brilliantly colored sea fishes, and the strangest and most gorgeously plumaged of the birds.